Because the FDA exists?? Because that would be fraud to claim otherwise, and fruit/veg sources are easily traceable back to their source, particularly at quantity?

USDA regulates that, at least for products with its seal.

https://www.ams.usda.gov/rules-regulations/organic/organic-s...

Thank you for the correction

The FDA does not regulate the use of the term “organic” on food labels.

Further, if something isn’t 100% organic how do you know which part isn’t?